Printing-press



(No Model.) 1

H. SWAIN..

v PRINTING PRESS. No. 463,997. Patented Nov. 24, 1891.

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owm@ HQWJ ff-MMM 37 UNiTnn STATES PATENT @Prion IlA-DXVEN SIVAIN, OF SANFRANCISCO, CALIFORNIA.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 463,997, dated November24, 1891.

Application iiled April 8,1890. Serial No. 347,159. (No model.)

T0 all whom, it may concern.:

Beit known that I, HADWEN SWAIN, a citizen of the United States ofAmerica, residing at San Francisco, in the county of San Francisco andState of California, have invented certain new and useful Improvementsin Printing-Presses, of which the following is a specification,reference being had therein to the accompanying drawings.

My invention'relates to the inking apparatus of job-printing presses inwhich the bed orplaten, or both, have movement toward and from eachother to make the impression; butI it is designed more especially forapplication to machines of which the Gordon presses are a well knowntype. In this class of presses the arm or frame at each side of thepress, carrying the inking-rollers, is mounted on a shaft supported onthe frame of the type-bed. To this arm is pivoted one end of a side bar,the other end of which is pivoted to some movable part of the press ifthe bed be stationary, or to a fixed part of the frame if the bed bemovable. By this means the roller-carrying arms are rocked to and fro,so as to move the inking rollers alternately down over the type-form onthe bed and up over the inkdistributing plate or cylinder arranged abovethe bed at every revolution of the main shaft of the machine. It isoften desirable that this revolution and the consequent general motionof .the machine shall take place withoutbringing the inking-rollers intocontact with the form, and this can be accomplished only by removing theform or the rollers. It is also often desired that the rollers shallhave motion for the distribution of the ink, during which they shall nottouch the form, and the form must therefore be removed.

The object of my invention is to provide improved means whereby whilethe action of the press continues the rollers shall be prevented fromreaching the type-form on the bed, but shall at the same time have amplemotion for the distribution of ink. I accomplish this object by themechanism substantially as hereinafter described, andlshown in thedrawings, in which- Figure l is a side View of a roller arm or saddlewith my improved compound side bar and stop-motion applied thereto. Fig.2

is au end view of the side bar; Fig. 3, atop View of handle, pawl, andstop attachment.; Fig. 4, a side view of the slotted connectinglink;Fig. 5, a view of the pawl; and Fig. 6, top and side view of the slidingextension of the side bar. Fig. 7 is a sectional view on line :r 0c ofFig. l, with the pawl a engaged in the notch 'n of bar e.

Similar letters of reference indicate like parts in the drawings.

The roller arm or saddle s, as Will be well understood, is mounted on ashaft m, supported in the frame of the type-bed. lWIotion is impartedtothis saddle by a side bar arranged substantially as hereinbeforedescribed; but in my improvement this side bar B is composed of twoparts having a sort of telescopiug relation to each other. The main partg of the bar has overhanging lianges on its two edges, forming a Tgroove or way ou its side, Fig. 2. In this recess is placed the body ofthe other lpart e of the bar, so that the twoare free to slide upon oneanother When they are not locked together, as hereinafter set forth. Anarm on the outer end of the part e is pivoted on a lug` Z on the saddlenear the shaft m, on which the saddle rocks. The other end of thecompound bar, a projection on the outer endof the part g, is connectedby a pivot-bearingj to a movable or a fixed part of the machineaccording to the circumstances of its construction and operation, ashereinbefore referred to.

The devices forming my stop-motion are carried by the main part of theside bar. In bearings lo on-the side of said part g is mounted avertical shaft 0l, which is provided on its upper end with acrank-handle f, by which it is rocked at will by the pressman. On theshaft at a point opposite the open part of the groove in the bar g'issecured a dog or pawl a, and on the lower end of the shaft is formed orsecured a stop-arm d. In a lug c on the bar g is iixed a pin c, whichenters a slot b in a curved link Z). This link swings from a pivot 7a onthe roller-arm or saddle at a distance from the shaft m, on which thesaddle rocks, considerably greater than the pivot at Z. In the outerside of the bar e is cut a notch n, which in one position of the handlef is engaged by the dog a, which thereby locks together the bars g andeand prevents any IOO movement of the one on the other. lVhen the pawlis in this position, the stop d is turned aside from the link I), whichwill then slide idly on the pin c; but when the handle f is turned tothrow the dog out from the notch n, releasing the sliding bar e by thesame movement, the stop CZ is brought under the end of link b, which isthereby locked to the pin c as a pivot. The link b is curved, as shown,so that when it is sliding loosely over the pin cit will not strike thepivot in the bearing j.

In the operation of the machine to which my improvement is applied, thenormal position of the parts is as shown in Fig. '7, with the compoundside bar in its contracted condition, the dog or pawl ce seated in thenotch n' and locking its parts together. Then as the bed and platen areseparated the saddle is given its extreme movement, carrying the in king-rollers from the distributer-plate down over the type-form, and as thebed and platen move toward an impression the rollers are carried backover the form to the distributer. In this latter action the rear end ofthe bar g comes against the arm of bar e, forming a solid shoulder, tothrust the inking-rollers up to the distributer-plate, while to draw therollers down the grip of the dog in the notch "n, is sufficientlystrong. Now whenever it is desired to give the inking-rollers extradistribution or for other reason to have the motion of the presscontinue without allowing the rollers to reach the form, the pressman,by turning the handle f, throws the d og out from the notch n, and bythat 'motion of the shaft 'L' the stop CZ is brought under the lower endof the link b and prevents any longitudinal movement of the link on thepin c, as shown in Fig. l. Then, as the motion of the machine continuesthe saddle receives its motion through theV link b, which is thus lockedto the bar g, which latter slides over the bar e, and the pivotattaching the link to the saddle being much farther than the pivot Zfrom the shaft m, the regular motion of the machine will give a muchless motion than before to the saddle and the inkingrollers carriedthereby are drawn back and forth over the distributer-plate and cannotdescend over the form. A reverse motion of the crank-handle willsimultaneously release the link I) and, locking together the bars g ande, re-establish the normal operation of the inking apparatus.

I am aware that sundry constructions have been made with a similarobject in view, as the employment of movable bearers at the sides of theform; but I regard these as more complicated and costly constructions,and not so well adapted for application to existing machines of theseveral forms hereinbefore mentioned. To this end this invention iseminently fitted.

Having thus described my invention, I do not Wish to be limited to theprecise construction setfortlnas itis obvious that sundry modificationsthereof may be made not outside the scope of myinvention. If asimplethrowoff for the inking-roller be desired, the link b and its enactingdevices may be dispensed with, in which case the simple unlocking of thedog a from the notch nwillallow the bars `r/and c to slide upon oneanother, and little or no motion will be given to the inking-rollerswhile the general operation of the machine continues.

That I desire to secure by Letters Patent as my invention is- 1. In aninking apparatus, the combination. with the inking-roller saddle, of acompound side bar in two parts adapted to slide upon one another, andmeans, substantially as described, for locking the parts together, asset forth.

2. In an inking apparatus, the combination, with the inking-rollersaddle, of the compound side bar, and a stop-motion whereby the rollersmay be prevented from reaching the form, substantially as described.

3. In an inking apparatus, the combination, with the inking-rollersaddle, of a compound side bar in two parts adapted to slide upon oneanother, and a dog or pawl locking and unlocking the parts,substantially as described.

4. In an inking apparatus, the combination, with the inking-rollersaddle, of a compound side bar pivoted to the saddle near itssupporting-shaft, the link pivoted to the saddle farther from saidshaft, and means, substan-` tially as described, for locking andunlocking' the parts, as set forth.

5. In an in king apparatus, the combination, with the inking-rollersaddle and the compound side bar carrying the cranked shaft and its dogand stop, of the link slotted to engage a pin on said bar, substantiallyas described.

6. In an inking apparatus, the combination, with the inking-rollersaddle, of the bar g, having an open T-groove in its side, the bar e,pivoted to said saddle and seated in said groove, and the dog mounted onthe bar g and adapted to engage a notch n in the bar e, substantially asdescribed.

7. In an inking apparatus, the combination, with the inking-rollersaddle, the compound side bar, and the stop-motion carried thereby, ofthe link pivoted to said saddle and slotted and curved, as described, soas to slide over the pin in said bar and free of the pivot thereof,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

HADWEN SWAIN. Witnesses:

PAUL SCHMITZ, G. M. SToLZ.

ICO

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